Dugongs are grey sea mammals, also called “sea cows”, partly because of how they look and because they graze on seagrass. The dugong can be found off the coast of 48 countries between East Africa and Vanuatu in Oceania. They are listed as Vulnerable on the IUCN Red List of Threatened Species.

There used to be common sightings off the coast of Thailand but now, at least 70 dugongs have been found dead along the southern coast of the Andaman Sea over a period of 22 months. In October 2024 alone, 30 dugongs were reported dead in Thailand. What’s behind this?

Panisa Aemocha from BBC Thai, explains the importance of dugongs to local eco-systems and why their numbers are declining. We also hear what the Thai government is trying to do to save them.

Numbers have also gone down in East Africa. Evan Trotzuk from the African Parks NGO, explains why and tells us about the measures being taken to protect dugong in Bazaruto Archipelago National Park, Mozambique.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Julia Ross-Roy and Maria Clara Montoya Video Journalist: Tim Hodges Editor: Verity Wilde